{"id":11392,"date":"2023-10-18T05:08:47","date_gmt":"2023-10-18T12:08:47","guid":{"rendered":"https:\/\/www.mysqltutorial.org\/?page_id=11392"},"modified":"2023-10-19T00:03:09","modified_gmt":"2023-10-19T07:03:09","slug":"mysql-period_add","status":"publish","type":"page","link":"https:\/\/www.mysqltutorial.org\/mysql-date-functions\/mysql-period_add\/","title":{"rendered":"MySQL PERIOD_ADD() Function"},"content":{"rendered":"\n<p><strong>Summary<\/strong>: in this tutorial, you will learn how to use the MySQL <code>PERIOD_ADD()<\/code> function to add a specified number of months to a period.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Introduction to MySQL PERIOD_ADD() function<\/h2>\n\n\n\n<p>The <code>PERIOD_ADD()<\/code> function allows you to add a number of months to a period in the format <code>YYMM<\/code> or <code>YYYMMM<\/code>.<\/p>\n\n\n\n<p>Here&#8217;s the syntax of the <code>PERIOD_ADD()<\/code> function:<\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-1\" data-shcb-language-name=\"SQL (Structured Query Language)\" data-shcb-language-slug=\"sql\"><span><code class=\"hljs language-sql\">PERIOD_ADD(P, N)<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-1\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">SQL (Structured Query Language)<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">sql<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<p>In this syntax:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>P<\/code>: The period to which you want to add months (in the format <code>YYMM<\/code> or <code>YYYYMM<\/code>).<\/li>\n\n\n\n<li><code>N<\/code>: The number of months to add to the period.<\/li>\n<\/ul>\n\n\n\n<p>The <code>PERIOD_ADD()<\/code> function returns a value in the same format as  <code>P<\/code>, which is <code>YYMM<\/code> or <code>YYYYMM<\/code>.<\/p>\n\n\n\n<p>It returns <code>NULL<\/code> if either <code>P<\/code> or <code>N<\/code> is <code>NULL<\/code>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">MySQL PERIOD_ADD() function examples<\/h2>\n\n\n\n<p>Let&#8217;s take some examples of using the <code>PERIOD_ADD()<\/code> function.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1) Using PERIOD_ADD() to add months to a period example<\/h3>\n\n\n\n<p>The following example adds <code>2<\/code> months to the period <code>201310<\/code>:<\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-2\" data-shcb-language-name=\"SQL (Structured Query Language)\" data-shcb-language-slug=\"sql\"><span><code class=\"hljs language-sql\"><span class=\"hljs-keyword\">SELECT<\/span> <span class=\"hljs-keyword\">PERIOD_ADD<\/span>(<span class=\"hljs-number\">201310<\/span>, <span class=\"hljs-number\">2<\/span>);<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-2\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">SQL (Structured Query Language)<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">sql<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<p>Output:<\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-3\" data-shcb-language-name=\"SQL (Structured Query Language)\" data-shcb-language-slug=\"sql\"><span><code class=\"hljs language-sql\">+<span class=\"hljs-comment\">-----------------------+<\/span>\n| PERIOD_ADD(201310, 2) |\n+<span class=\"hljs-comment\">-----------------------+<\/span>\n|                201312 |\n+<span class=\"hljs-comment\">-----------------------+<\/span>\n1 row in <span class=\"hljs-keyword\">set<\/span> (<span class=\"hljs-number\">0.00<\/span> sec)<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-3\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">SQL (Structured Query Language)<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">sql<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<h3 class=\"wp-block-heading\">2) Using PERIOD_ADD() function with NULL values example<\/h3>\n\n\n\n<p>The <code>PERIOD_ADD()<\/code> function returns <code>NULL<\/code> if either period (<code>P<\/code>) or the number of months (<code>N<\/code>) is <code>NULL<\/code>:<\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-4\" data-shcb-language-name=\"SQL (Structured Query Language)\" data-shcb-language-slug=\"sql\"><span><code class=\"hljs language-sql\"><span class=\"hljs-keyword\">SELECT<\/span> <span class=\"hljs-keyword\">PERIOD_ADD<\/span>(<span class=\"hljs-literal\">NULL<\/span>, <span class=\"hljs-number\">2<\/span>);<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-4\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">SQL (Structured Query Language)<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">sql<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<p>Output:<\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-5\" data-shcb-language-name=\"plaintext\" data-shcb-language-slug=\"plaintext\"><span><code class=\"hljs language-plaintext\">+---------------------+\n| PERIOD_ADD(NULL, 2) |\n+---------------------+\n|                NULL |\n+---------------------+\n1 row in set (0.00 sec)<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-5\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">plaintext<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">plaintext<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<p>And:<\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-6\" data-shcb-language-name=\"SQL (Structured Query Language)\" data-shcb-language-slug=\"sql\"><span><code class=\"hljs language-sql\"><span class=\"hljs-keyword\">SELECT<\/span> <span class=\"hljs-keyword\">PERIOD_ADD<\/span>(<span class=\"hljs-number\">202312<\/span>, <span class=\"hljs-literal\">NULL<\/span>);<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-6\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">SQL (Structured Query Language)<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">sql<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<p>Output:<\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-7\" data-shcb-language-name=\"plaintext\" data-shcb-language-slug=\"plaintext\"><span><code class=\"hljs language-plaintext\">+--------------------------+\n| PERIOD_ADD(202312, NULL) |\n+--------------------------+\n|                     NULL |\n+--------------------------+\n1 row in set (0.00 sec)<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-7\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">plaintext<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">plaintext<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<h2 class=\"wp-block-heading\">Summary<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Use the <code>PERIOD_ADD()<\/code> function to add a number of months to a period in the format <code>YYMM<\/code> or <code>YYYYMM<\/code>.<\/li>\n<\/ul>\n<div class=\"helpful-block-content\" data-title=\"\">\n\t<header>\n\t\t<div class=\"wth-question\">Was this tutorial helpful? <\/div>\n\t\t<div 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